72155036624546 has 16 divisors (see below), whose sum is σ = 109320629666976. Its totient is φ = 35715299300736.

The previous prime is 72155036624483. The next prime is 72155036624633. The reversal of 72155036624546 is 64542663055127.

It is a super-2 number, since 2×72155036624546² (a number of 29 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 72155036624491 and 72155036624500.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 117835151 + ... + 118445906.

It is an arithmetic number, because the mean of its divisors is an integer number (6832539354186).

Almost surely, 2^{72155036624546} is an apocalyptic number.

72155036624546 is a deficient number, since it is larger than the sum of its proper divisors (37165593042430).

72155036624546 is a wasteful number, since it uses less digits than its factorization.

72155036624546 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 236282593.

The product of its (nonzero) digits is 36288000, while the sum is 56.

The spelling of 72155036624546 in words is "seventy-two trillion, one hundred fifty-five billion, thirty-six million, six hundred twenty-four thousand, five hundred forty-six".